Journal ArticleDOI
Daytime measurements of bioaerosol simulants using a hyperspectral laser-induced fluorescence LIDAR for biosphere research
Ofir Shoshanim,Adva Baratz +1 more
TLDR
In this paper, a home-built hyper-spectral laser-induced fluorescence (LIF) light detection and ranging (LIDAR) system is presented that can detect and identify bioaerosol clouds in an open atmosphere in daylight up to a distance of 3−4 km.Abstract:
A new compact home-built hyper-spectral laser-induced fluorescence (LIF) light detection and ranging (LIDAR) system is presented that can detect and identify bioaerosol clouds in an open atmosphere in daylight up to a distance of 3−4 km. The system is based on a 266 nm laser source and a dual-stage micro-channel plate intensified charge-coupled device sensor, which provides a high-resolution fluorescence spectrum with the sensitivity of a single photon counting imaging detection at a 10 Hz repetition rate. Controlled remote sensing experiments on biological simulants in the aerosol-phase within an enclosed chamber ( Δ R = 1.2 m ) were conducted from a short distance of ∼170 m. A meticulous comparison between the remote fluorescence signal detected by the system and the instantaneous concentration and particle size distribution of the bioaerosol inside the chamber detected by an aerodynamic particle sizer yielded a threshold of ∼ 20 and 137 μ g r s m - 3 for the spectral identification of tryptophan and ovalbumin, respectively. This showed that the LIDAR can measure environmental airborne biological aerosol remotely in the daytime and can be utilized as a real-time biosphere research tool. Next, the system was tested in open atmospheric field campaigns in the Israeli desert during the day. It successfully detected bioaerosol clouds at up to 2.5 km in strong wind and sunny conditions. These empirical detection and identification results provide robust estimates that a biological cloud can be sensed at a distance of ∼ 4 km.read more
Citations
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Journal ArticleDOI
A new fluorescence-based methodology for studying bioaerosol scavenging processes using a hyperspectral LIF-LIDAR remote sensing system.
Ofir Shoshanim,Adva Baratz +1 more
TL;DR: In this paper , a remote sensing system based on a homebuilt hyperspectral laser induced fluorescence (LIF) Lidar was used to measure the transient back-fluorescence and backscattering signals.
Journal ArticleDOI
Remote Nanoscopy with Infrared Elastic Hyperspectral Lidar
TL;DR: In this article , a hyperspectral lidar with 64 spectral bands based on a supercontinuum light source using ray-tracing and 3D printing is developed to detect free-flying insects and their wingbeats.
Journal ArticleDOI
Environmental sampling for disease surveillance: Recent advances and recommendations for best practice
TL;DR: In this article , a review examines air, surface and water/wastewater sampling methods, with a focus on aerosol sampling, and a goal of recommending approaches to designing and implementing sampling systems that may incorporate multiple strategies.
Proceedings ArticleDOI
Preliminary idea for a bio-alarm to improve air quality
TL;DR: In this paper, a prototype for detecting the target bioparticles (such as bacteria, fungi, etc.) by developing a prototype that operates on the principle of Mie scattering and luminescence is presented.
Journal ArticleDOI
Detection of bioaerosols using hyperspectral LIF-LIDAR during S/K challenge II campaign at Dugway
TL;DR: In this article , the authors demonstrate the application of a hyperspectral Laser Induced Fluorescence Light Detection and Ranging (LIF-LIDAR) system for the remote sensing of bioaerosols during the international S/K CHALLENGE II field campaign at the U.S. Army Dugway Proving Ground (DPG).
References
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Book
Photonics : optical electronics in modern communications
Amnon Yariv,Pochi Yeh +1 more
TL;DR: In this article, KRAMERS-KRONIG this article describes the step-index CIRCULAR WAVEGUIDE and the transformation of a COHERENT ELECTROMAGNETIC FIELD by a thin LENS.
Journal ArticleDOI
The effects of meteorological factors on atmospheric bioaerosol concentrations--a review.
Alan M. Jones,Roy M. Harrison +1 more
TL;DR: Measurements of the concentrations of airborne material near dominant sources are reviewed for both area sources, and for point sources such as sewage and waste treatment works, agricultural practices, and diseased animals.
Book
Laser remote sensing : fundamentals and applications
TL;DR: In this article, the authors present an analysis and interpretation of the Lidar Return Signals, as well as a discussion of the application of LIDAR in hydrographic and atmospheric applications.
Journal ArticleDOI
Real-time measurement of fluorescence spectra from single airborne biological particles
Steven C. Hill,Ronald G. Pinnick,Stanley Niles,Yong-Le Pan,Stephen Holler,Richard K. Chang,Jerold R. Bottiger,Bean T. Chen,Chun-Sing Orr,Greg A. Feather +9 more
TL;DR: In this paper, the authors present a real-time system for measuring the laser-induced fluorescence (total and spectrally dispersed) of individual airborne particles, which can distinguish between some biological and nonbiological aerosols, and among several types of laboratory-generated biological aerosols.
Journal ArticleDOI
Size distributions and temporal variations of biological aerosol particles in the Amazon rainforest characterized by microscopy and real-time UV-APS fluorescence techniques during AMAZE-08
J. A. Huffman,Baerbel Sinha,Rebecca M. Garland,A. Snee-Pollmann,A. Snee-Pollmann,Sachin S. Gunthe,Paulo Artaxo,S. T. Martin,Meinrat O. Andreae,Ulrich Pöschl +9 more
TL;DR: In this paper, an ultraviolet aerodynamic particle sizer (UV-APS) was operated for continuous measurements of fluorescent biological aerosol particles (FBAP) during the AMAZE-08 campaign in the rainforest of central Amazonia.